Halo 3
Vidmaster Challenge: Lightswitch: "Get the rank of Lieutenant in any playlist in the new EXP progression system."
Vidmaster Challenge: Annual: "After 9/25/08, complete Halo (Final level) on 4-player Legendary LIVE co-op, with Iron, and everyone in Ghosts."
Vidmaster Challenge: 7 on 7: "Enter into a ranked or social playlist with 7 EXP on the 7th of the month."
Vidmaster Challenge: Brainpan: "Find all the hidden skulls on the Mythic maps."
Halo 3: ODST
Vidmaster Challenge: Endure: "In Firefight, on any mission, pass the 4th set on 4-player Heroic LIVE co-op."
Vidmaster Challenge: Deja Vu: "Complete Coastal Highway on 4-player Legendary LIVE co-op, with Iron, and no 'Hog or Scorpion."
Vidmaster Challenge: Classic: "Finish any level solo on Legendary, on LIVE, with no shots fired or grenades thrown."